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Question : What is a lookup in Oracle Apps Answer: It is a set of codes and their meanings. Question: Any examples? Answer: The simplest example is say a lookup type of Gender. This will have definitions as below Code Meaning -----------------M Male F Female U Unknown Question: But where is it used, any examples of its usages? Answer: Let us say that there is a table for employees, and this table named PER_PEOPLE_F & has following columns ---FIRST_NAME LAST_NAME Question : What is a lookup in Oracle AppsCopy Lookups Answer: It is a set of codes and their meanings. Question: Any examples? Answer: The simplest example is say a lookup type of Gender. This will have definitions as below Code Meaning -----------------M Male F Female U Unknown Question: But where is it used, any examples of its usages? Answer: Let us say that there is a table for employees, and this table named PER_PEOPLE_F & has following columns ---FIRST_NAME LAST_NAME DATE_OF_BIRTH GENDER Question: Will the gender column in above table hold the value of M or F or U? Answer: Correct, and the screen that displays people details will in reality display the meaning of those respective codes (i.e. Male, Female, Unknown etc) instead of displaying the code of M or F or U

Question: hmmm...so are lookups used to save the bytes space on database machine? Answer: Noooo. Imagine a situation as below a. There are 30,000 records in people table of which 2000 records have gender value = U. In the screen, their Gender is being displayed as "Unknown". Now let’s say you want this to be changed to "Undisclosed". To implement this change, all you have to do is to change the meaning of the lookup codes for lookup type GENDER. Hence it will look like Code Meaning ------ ------------M Male F Female U Undisclosed Here lies the beauty of lookups, you do not need to modify 2000 odd records in this case. Question : Any other usage of lookups? Answer : Sure, lets take another example. In HRMS, there is a field named Ethnicity. By default Oracle ERO delivers the below values Lookup code lookup meaning -----------------------------------AS Asian EU European Now, if your client wants to track Ethnicity at a granular level, they can amend the Oracle delivered lookup definition as below Lookup code lookup meaning -----------------------------------ASI Asian-Indian ASP Asian-Pakistani EU European Hence these values will then be available in the list of values for Ethnicity field. Question: Are we saying that all the lookups delivered by oracle can be modified? Answer: Depends. If oracle has a lookup called termination status, and if based on the termination status code Oracle has some rules defined within Payroll Engine....!! Surely Oracle Payroll Engine will not like it if you end date an existing status code or add a new status code to termination. For this very reason, Oracle flags some lookups as System lookups, and the lookup entry screen will not let you modify those lookup codes. Question: OK, what if I do not wish to modify existing Lookup codes, but only wish to add new Lookup codes to an existing Oracle delivered Lookup Type?

Answer: You can do so, provided the Oracle delivered Lookup Type is flagged as Extensible. Please see the screenshot Question: Can we add our own new lookup types? Answer: Yes you can, for this you will first define a lookup type and will then define a set of lookup codes against the Lookup Type. In our example above, GENDER is the LOOKUP_TYPE Question: Does a LOOKUP_TYPE get attached to a Descriptive Flexfield…just like Value Sets? Answer: Not really. There is no direct relation between lookup and Descriptive Flexfield.

Now, the screenshots. Click on the menu as below to invoke Lookup Screen.

Once in the screen, you can define your lookup type and lookup codes as below.

DATE_OF_BIRTH GENDER Question: Will the gender column in above table hold the value of M or F or U? Answer: Correct, and the screen that displays people details will in reality display the meaning of those respective codes (i.e. Male, Female, Unknown etc) instead of displaying the code of M or F or U Question: hmmm...so are lookups used to save the bytes space on database machine? Answer: Noooo. Imagine a situation as below a. There are 30,000 records in people table of which 2000 records have gender value = U. In the screen, their Gender is being displayed as "Unknown". Now let’s say you want this to be changed to "Undisclosed". To implement this change, all you have to do is to change the meaning of the lookup codes for lookup type GENDER. Hence it will look like Code Meaning ------ ------------M Male F Female U Undisclosed Here lies the beauty of lookups, you do not need to modify 2000 odd records in this case. Question : Any other usage of lookups? Answer : Sure, lets take another example. In HRMS, there is a field named Ethnicity. By default Oracle ERO delivers the below values Lookup code lookup meaning -----------------------------------AS Asian EU European Now, if your client wants to track Ethnicity at a granular level, they can amend the Oracle delivered

lookup definition as below Lookup code lookup meaning -----------------------------------ASI Asian-Indian ASP Asian-Pakistani EU European Hence these values will then be available in the list of values for Ethnicity field. Question: Are we saying that all the lookups delivered by oracle can be modified? Answer: Depends. If oracle has a lookup called termination status, and if based on the termination status code Oracle has some rules defined within Payroll Engine....!! Surely Oracle Payroll Engine will not like it if you end date an existing status code or add a new status code to termination. For this very reason, Oracle flags some lookups as System lookups, and the lookup entry screen will not let you modify those lookup codes. Question: OK, what if I do not wish to modify existing Lookup codes, but only wish to add new Lookup codes to an existing Oracle delivered Lookup Type? Answer: You can do so, provided the Oracle delivered Lookup Type is flagged as Extensible. Please see the screenshot Question: Can we add our own new lookup types? Answer: Yes you can, for this you will first define a lookup type and will then define a set of lookup codes against the Lookup Type. In our example above, GENDER is the LOOKUP_TYPE Question: Does a LOOKUP_TYPE get attached to a Descriptive Flexfield…just like Value Sets? Answer: Not really. There is no direct relation between lookup and Descriptive Flexfield.

Now, the screenshots. Click on the menu as below to invoke Lookup Screen.

Once in the screen, you can define your lookup type and lookup codes as below.

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